Merge pull request #218670 from wegank/nodenv-unix

nodenv: support more platforms

pkgs/development/tools/nodenv/default.nix

···
     changelog = "https://github.com/nodenv/nodenv/releases/tag/v${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ alexnortung ];
-    platforms = [ "x86_64-linux" ];
+    platforms = platforms.unix;
   };
 }